这个例子获得使用NI-SCOPE数字化的信号，并绘出了互补累积分布函数所获得的信号（CCDF）功率级图。一个CCDF图显示了多少时间的信号花费达到或超过给定的功率电平。-This example acquires a signal using an NI-SCOPE digitizer and plots the complementary cumulative distribution function (CCDF) power-level graph of the acquired signal. A CCDF graph displays how much time a signal spends at or above a given power level.